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Nucleotides and Nucleosides

The variable ...

Question

The variable portion of DNA molecule is ___________.

A

Sugar

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B

Base

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C

Deoxyribose

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D

Ribose

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E

Phosphate

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Solution

The correct option is C Base
The DNA molecule is a polymer of nucleotides. Each nucleotide is composed of a nitrogenous base, a five-carbon sugar (deoxyribose), and a phosphate group. There are four nitrogenous bases in DNA

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